1912, Apr. 10, New
Orleans-Baton Rouge and Return. City to City Experimental Flight (AAMC
22). Two locally addressed picture postcards, each with 1c Green tied
by "New Orleans La. Apr. 10 3:30PM 1912" duplex cancel and magenta hs
cachet, one with ornate design of the 35th Anniversary of the Catholic
Knights of America, other with view of New Orleans City Park, minor flaws,
otherwise Very Fine (Image) 
1912, Apr. 21, Eureka Cal.
New Era Park Aviation Meet (AAMC 23). Two locally addressed postcards,
first with 1c Green tied by flight cancel on photo postcard of Weldon B.
Cooke's plane circling Mt. Tamalpais with small Cooke inset, other on 1c
Blue postal card (UX22), latter with small creases, Very Fine, only 147
pieces flown (Image) 
1912, May 16, Marietta Ohio,
Marietta Daily Journal Aviation Meet (AAMC 24). 1c Green tied by
well-struck flight cancel on souvenir postcard with plane over Muskingum
River, to Sisterville West Va., Very Fine, AAMC states less than ten pieces
known from the approximately 1,500 flown
(Image) 
1912, May 25, Chicago Ill.
Cicero Field-Milwaukee Wis. Record Over-Water Flight (AAMC 26). 2c
Carmine, s.e. at top, tied by well-struck "Chicago Ill. May 25 10:30AM
1912" machine cancel on buff cover with printed Milwaukee Journal corner
card to Rabbi Sam'l Hirschberg, Milwaukee Wis., violet five line handstamp
and small blue "Via Airship" cachets, cover roughly opened at left, couple
small edge tearsFINE. THIS IS THE ONLY ONE OF THE THREE KNOWN FLOWN COVERS FROM THIS FLIGHT IN PRIVATE HANDS.
According to the AAMC, the other two belong to museums. Illustrated in the AAMC (Image)
1912, May 30-June 1,
Milwaukee Wis. State Fair Grounds Aviation Meet (AAMC 28). 1c Green
tied by bold May 30 (First Day) flight cancel on photo postcard of Miss
Julia Clark "Daring Girlbird" in her cockpit, to Ft. Atkinson Wis., Very
Fine, according to AAMC, "very few May 30 pieces have survived" (Image) 
1912, May 30-June 1,
Milwaukee Wis. State Fair Grounds Aviation Meet (AAMC 28). Well-struck
May 30 (First Day) flight cancel on locally addressed 1c Red Postal Card
(UX24), message side states, "Dear Mother: This was delivered by
aeroplane. They hae a special post office out here. Paul", Extremely
Fine, according to AAMC, "very few May 30 pieces have survived" (Image) 
1912, May 30-June 1,
Milwaukee Wis. State Fair Grounds Aviation Meet (AAMC 28). Almost
perfectly struck June 1 flight cancel on 2c Red on Blue entire
(U414) to L.D. Peaslee, Public Museum, Milwaukee, Wis.EXTREMELY FINE. THIS IS THE ONLY PICE OF MAIL POSTMARKED JUNE 1 FROM THE AVIATION MEET.
According to AAMC, due to poor attendance and windy weather that caused many crashes on May 31, the meet was canceled at 4PM on May 31. This cover was prepared but never flown. Ex Lettick (Image)
1912, May 30-June 2.
Cicero-Elmhurst-Wheaton Ill. Triple City Aviation Meet (AAMC 30f). 1c
Green tied by "Cicero Ill. Jun. 2 4:30PM 1912" flag cancel and "Wheaton
Ill. Jun. 3 9AM 1912" machine cancel on photo postcard depicting Jas. Ward
in the cockpit of his plane, to Chicago, light blue "Aero Mail" hs cachet,
small faults, otherwise Very Fine (Image) 
1912, May 30-June 2.
Cicero-Elmhurst-Wheaton Ill. Triple City Aviation Meet (AAMC 30f). 1c
Green tied by "Cicero Ill. Jun. 2 4:30PM 1912" flag cancel and "Wheaton
Ill. Jun. 3 9AM 1912" machine cancel on photo postcard depicting Jas. Ward
in the cockpit of his plane, to Chicago, light blue "Aero Mail" hs cachet,
small faults, otherwise Fine (Image) 
1912, June 3-9, Lexington Ky.
Racetrack Aviation Meet (AAMC 31). 1c Green tied by "Lexington Ky. Jun.
13" machine cancel on photo postcard with three photos of planes and an
aviator, to San Antonio Texas, Extremely Fine -- no mail from this meet was
ever flown due to bad weather on June 8 and 9, the postmaster waited until
June 13 before sending it by train (Image)